New Delhi: The air quality in the national capital continued to remain in the 'very poor' category, with the overall Air Quality Index (AQI) at 319 on Saturday.

According to the System of Air Quality and Weather Forecasting And Research (SAFAR), the concentrations of PM 2.5 and PM 10 stood at 123 in the 'very poor' and 204 in the 'poor' category, respectively.
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As per government agencies, an AQI between zero and 50 is considered 'good', 51 and 100 'satisfactory', 101 and 200 'moderate', 201 and 300 'poor', 301 and 400 'very poor', and 401 and 500 'severe'.
After a review meeting on Monday, the Delhi government has extended the ban on the entry of non-essential trucks in the national capital till further orders. Also, temperatures dropped further in the national capital on Saturday.

A minimum temperature of 5°C was recorded in Delhi (in Ridge & Ayanagar), 3°C in Haryana (Narnaul), 0.7 °C in Punjab (Amritsar) and -1.1 °C in Rajasthan (Churu), as per the India Meteorological Department (IMD).
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Meanwhile, parts of Himachal Pradesh are covered in a blanket of snow as the region continues to receive snowfall. Temperatures continued to remain low in Punjab's Amritsar, with a layer of fog engulfing the city. People sit near the fire to keep themselves warm. As per the IMD, Amritsar is likely to experience 'dense fog' on Saturday with the minimum temperature being 1°C .
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Rajasthan's Churu recorded a minimum temperature of -1.1°C, as per the IMD. People in the region woke up to dense fog this morning. Fog also engulfed Uttar Pradesh's Moradabad city amid cold waves.
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"Since December 17, cold wind is blowing and it has become extremely cold. Visibility is very low in the mornings and it gets difficult to drive. People are comforting themselves sitting near the fire," said a mini truck driver.
-PTC News